If you're using a VPN, it's possible that anyone else using the same VPN could share an IP which can lead to problems. Generally, we don't let people use any sort of VPN, even with static IP, as it's just easier for us to manage everyone when there aren't 10 other factors that can cause problems.

Apop may be getting around to this tonight. He'd know officially what has happened so he'll be around to this soon enough. In a best case, we can write you an exception under your base IP. I would imagine that we can get this fixed if it's just a VPN problem. It is possible that you could have pulled something more serious that may not be able to be fixed, but we'll just wait to see what Apop says.